[Shiraishi Nagisa] Parent Child Incest Island (Tsuma no Naka no Shoufu to Shukujo) [Amoskandy]

On a remote fishing island where sex is forbidden outside god-sanctioned marriage, young Kaito weds his sweetheart Yuka the moment they come of age, only for his wedding night to unravel in a way no mainland groom could foresee. A giggling stranger in a fox mask pins him down helpless while his bride waits one room away, but when the mask slips, the voluptuous mother straddling him confesses she has 'always been waiting for this day.' Torn between his vows and a ritual too overwhelming to refuse, Kaito surrenders to the island's ancient way of life, where even the most forbidden thoughts gradually disappear.